// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_TRACE_UPLOADER_H_
#define CONTENT_PUBLIC_BROWSER_TRACE_UPLOADER_H_

#include <stdint.h>

#include <memory>

#include "base/callback.h"
#include "base/values.h"

namespace content {

// Used to implement a trace upload service for use in about://tracing,
// which gets requested through the TracingDelegate.
class TraceUploader {
public:
    // This should be called when the tracing is complete.
    // The bool denotes success or failure, the string is feedback
    // to show in the Tracing UI.
    typedef base::Callback<void(bool, const std::string&)> UploadDoneCallback;
    // Call this to update the progress UI with the current bytes uploaded,
    // as well as the total.
    typedef base::Callback<void(int64_t, int64_t)> UploadProgressCallback;

    virtual ~TraceUploader() { }

    enum UploadMode { COMPRESSED_UPLOAD,
        UNCOMPRESSED_UPLOAD };

    // Compresses and uploads the given file contents.
    virtual void DoUpload(const std::string& file_contents,
        UploadMode upload_mode,
        std::unique_ptr<const base::DictionaryValue> metadata,
        const UploadProgressCallback& progress_callback,
        const UploadDoneCallback& done_callback)
        = 0;
};

} // namespace content

#endif // CONTENT_PUBLIC_BROWSER_TRACE_UPLOADER_H_
